GB1522698A - Digital signal processing device - Google Patents

Digital signal processing device

Info

Publication number
GB1522698A
GB1522698A GB44624/75A GB4462475A GB1522698A GB 1522698 A GB1522698 A GB 1522698A GB 44624/75 A GB44624/75 A GB 44624/75A GB 4462475 A GB4462475 A GB 4462475A GB 1522698 A GB1522698 A GB 1522698A
Authority
GB
United Kingdom
Prior art keywords
quantiser
output
bits
numbers
magnitude
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB44624/75A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Philips Electronics UK Ltd
Original Assignee
Philips Electronic and Associated Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Philips Electronic and Associated Industries Ltd filed Critical Philips Electronic and Associated Industries Ltd
Publication of GB1522698A publication Critical patent/GB1522698A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F7/00—Methods or arrangements for processing data by operating upon the order or content of the data handled
    • G06F7/38—Methods or arrangements for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H17/00—Networks using digital techniques
    • H03H17/02—Frequency selective networks
    • H03H17/04—Recursive filters
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H17/00—Networks using digital techniques
    • H03H17/02—Frequency selective networks
    • H03H17/04—Recursive filters
    • H03H17/0461—Quantisation; Rounding; Truncation; Overflow oscillations or limit cycles eliminating measures
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
    • H03K3/80—Generating trains of sinusoidal oscillations

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Computer Hardware Design (AREA)
  • Theoretical Computer Science (AREA)
  • Computational Mathematics (AREA)
  • Computing Systems (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Pure & Applied Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Analogue/Digital Conversion (AREA)
  • Complex Calculations (AREA)
GB44624/75A 1974-11-14 1975-10-29 Digital signal processing device Expired GB1522698A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NLAANVRAGE7414848,A NL169535C (nl) 1974-11-14 1974-11-14 Digitale signaalbewerkingsinrichting met gestuurde kwantisering.

Publications (1)

Publication Number Publication Date
GB1522698A true GB1522698A (en) 1978-08-23

Family

ID=19822469

Family Applications (1)

Application Number Title Priority Date Filing Date
GB44624/75A Expired GB1522698A (en) 1974-11-14 1975-10-29 Digital signal processing device

Country Status (11)

Country Link
US (1) US4034196A (https=)
JP (1) JPS6030129B2 (https=)
AU (1) AU502889B2 (https=)
BE (1) BE835514A (https=)
CA (1) CA1078521A (https=)
DE (1) DE2549574C3 (https=)
DK (1) DK506875A (https=)
FR (1) FR2291652A1 (https=)
GB (1) GB1522698A (https=)
NL (1) NL169535C (https=)
SE (1) SE416602B (https=)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2175167A (en) * 1985-04-30 1986-11-19 British Telecomm Digital filters

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL178640C (nl) * 1976-07-12 1986-04-16 Philips Nv Digitale signaalbewerkingsinrichting.
JPS54554A (en) * 1977-06-03 1979-01-05 Hitachi Ltd Digital filter
JPS6034853B2 (ja) * 1978-02-15 1985-08-10 株式会社日立製作所 デジタルフイルタ
US4195350A (en) * 1978-06-19 1980-03-25 Cbs Inc. Method and apparatus for eliminating deadband in digital recursive filters
FR2429468A1 (fr) * 1978-06-21 1980-01-18 Materiel Telephonique Generateur numerique de signaux sinusoidaux
US4321685A (en) * 1978-11-20 1982-03-23 Masao Kasuga Circuit for reducing the limit cycle in a digital filter
JPS5571316A (en) * 1978-11-24 1980-05-29 Hitachi Ltd Recursive digital filter
US4213187A (en) * 1978-12-14 1980-07-15 Bell Telephone Laboratories, Incorporated Digital filters with control of limit cycles
US4236224A (en) * 1978-12-26 1980-11-25 Rockwell International Corporation Low roundoff noise digital filter
IT1118625B (it) * 1979-05-11 1986-03-03 Cselt Centro Studi Lab Telecom Perfezionamenti agli equializzatori per trasmissione di segnali numeri ci
US4272648A (en) * 1979-11-28 1981-06-09 International Telephone And Telegraph Corporation Gain control apparatus for digital telephone line circuits
DE3029249C2 (de) * 1980-08-01 1984-11-15 ANT Nachrichtentechnik GmbH, 7150 Backnang Verfahren zur Synchronisation eines gestörten Empfangssignals mit dem zugehörigen Sendesignal sowie Schaltungsanordnung zur Durchführung dieses Verfahrens
US4356559A (en) * 1980-08-01 1982-10-26 Bell Telephone Laboratories, Incorporated Logic arrangement for recursive digital filter
DE3033382C2 (de) * 1980-09-04 1982-06-09 Siemens AG, 1000 Berlin und 8000 München Puls-Doppler-Radar mit einer von Rekursionsfiltern gebildeten Festzeichenunterdrückungsschaltung
US4435823A (en) 1980-12-29 1984-03-06 Harris Corporation Adaptive equalizer capable of linear and nonlinear weighting
DE3112570C2 (de) * 1981-03-30 1983-12-22 Siemens AG, 1000 Berlin und 8000 München Digitaler Cosinus-Generator
US4438504A (en) 1981-06-15 1984-03-20 Bell Telephone Laboratories, Incorporated Adaptive techniques for automatic frequency determination and measurement
NL8105801A (nl) * 1981-12-23 1983-07-18 Philips Nv Recursief digitaal filter.
NL8201344A (nl) * 1982-03-31 1983-10-17 Philips Nv Digitale toonregelinrichting.
IT1159580B (it) * 1983-05-05 1987-03-04 Cselt Centro Studi Lab Telecom Perfezionamenti agli equalizzatori per la correzione di segnali numerici con un ramo di post decisione e un ramo di pre decisione in parallelo
US4589084A (en) * 1983-05-16 1986-05-13 Rca Corporation Apparatus for symmetrically truncating two's complement binary signals as for use with interleaved quadrature signals
EP0174593B1 (en) * 1984-09-04 1991-12-11 Nec Corporation Digital tank circuit
US4812987A (en) * 1984-11-06 1989-03-14 Sharp Kabushiki Kaisha Wave shaping circuit
NL8500805A (nl) * 1985-03-20 1986-10-16 Philips Nv Recursief eerste orde digitaal videosignaalfilter.
US4703447A (en) * 1985-04-05 1987-10-27 The Grass Valley Group, Inc. Mixer controlled variable passband finite impulse response filter
JPH04332215A (ja) * 1991-05-08 1992-11-19 Matsushita Electric Ind Co Ltd オフセット除去装置
JP2807170B2 (ja) * 1993-06-01 1998-10-08 松下電器産業株式会社 演算装置
US8138840B2 (en) * 2009-01-23 2012-03-20 International Business Machines Corporation Optimal dithering of a digitally controlled oscillator with clock dithering for gain and bandwidth control

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3609568A (en) * 1970-06-08 1971-09-28 Bell Telephone Labor Inc Stable digital filter apparatus
US3725687A (en) * 1971-03-04 1973-04-03 Bell Telephone Labor Inc Threshold logic digital filter
US3749895A (en) * 1971-10-06 1973-07-31 Bell Telephone Labor Inc Apparatus for suppressing limit cycles due to quantization in digital filters

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2175167A (en) * 1985-04-30 1986-11-19 British Telecomm Digital filters
US4823296A (en) * 1985-04-30 1989-04-18 British Telecommunications Public Limited Company First order digital filter with controlled boost/truncate quantizer

Also Published As

Publication number Publication date
FR2291652B1 (https=) 1979-05-11
FR2291652A1 (fr) 1976-06-11
DE2549574B2 (de) 1979-08-23
SE416602B (sv) 1981-01-19
US4034196A (en) 1977-07-05
DE2549574C3 (de) 1980-05-08
DE2549574A1 (de) 1976-05-20
NL7414848A (nl) 1976-05-18
SE7512617L (sv) 1976-05-17
JPS6030129B2 (ja) 1985-07-15
BE835514A (fr) 1976-05-12
JPS5172255A (https=) 1976-06-22
CA1078521A (en) 1980-05-27
AU502889B2 (en) 1979-08-09
NL169535B (nl) 1982-02-16
AU8646675A (en) 1977-05-19
NL169535C (nl) 1982-07-16
DK506875A (da) 1976-05-15

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19941029